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Finding the Fourth Proportional to 136,000.60, 203,828.10 and 65,728.60

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Solution

The fourth proportional to 136,000.60, 203,828.10 and 65,728.60 is: 98,509.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,000.60 : 203,828.10 = 65,728.60 : x
  2. Step 2: Convert to fraction form
    136,000.60/203,828.10 = 65,728.60/x
  3. Step 3: Cross multiply
    136,000.60x = 203,828.10 × 65,728.60
  4. Step 4: Simplify right side
    136,000.60x = 13,397,335,653.66
  5. Step 5: Solve for x
    x = 13,397,335,653.66/136,000.60
  6. Step 6: Final answer
    x = 98,509.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.